Adobe Director Basics

ADOBE DIRECTOR BASICS
3D: Controlling appearance
Note: If the camera of sprite 1 does not currently display any overlays, this code fails silently.
-- Lingo
sprite(1).camera.removeOverlay(1)
// JavaScript
sprite(1).camera.removeOverlay(1);
Adding, inserting and removing backdrops
The equivalent methods for backdrops are:
camera.addBackdrop()
camera.insertBackdrop()
camera.removeBackdrop()
Properties for overlays and backdrops
When you add or insert an overlay of backdrop, you manually set the following properties:
source: The texture displayed in the overlay or backdrop
loc: The position within the camera.rect which corresponds to the regPoint (see below) of the overlay or backdrop
rotation: the rotation of the backdrop around its center
The following properties are set to default values:
scale: A positive floating-pointing number. You can scale a 3D model along three axes (x, y and z). The scale of an
overlay or backdrop is a single number that applies to both the horizontal and vertical axis. You cannot change the
proportion of the texture. The default value is 1.0.
regPoint: A point relative to the top left corner of the unrotated overlay or backdrop. The overlay or backdrop is
positioned first with its regPoint at the chosen loc within the camera view, and then it is rotated around its center.
See “Rotating overlays and backdrops” on page 116 for more information on this feature.
blend: A floating-point number between 0.0 (completely transparent) and 100.0 (completely opaque).
Accessing an overlay or backdrop in a particular layer
You cannot obtain a pointer to a particular overlay or backdrop in Lingo or JavaScript syntax. The following
illustration shows that doing so leads to a script error:
You can access the properties of an overlay or backdrop, but not the overlay or backdrop itself
Last updated 8/26/2011
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